I would like to pick up a full size 1911 gun to work on. It can be blue or parkerized or stainless. I would love to build from a series 70 colt , but they are pricey. Could I purchase a 1991 A1 colt and remove the series 80 safety stuff??? or would I be better with a milspec springfield or loaded springfield loaded but basic gun. I want a flat backstrap , triggerjob with 4 lb trigger , combat sites fixed ( no night sites) I want the gun accurate enough for combat work ( 4 inches at 25 yards or better ) I want the lowered ejection port and a tuned extractor . I will buy smooth wood grips that are narrow . It does not matter if it has cocking serrations or not... My latest springfield is really sharp in the edges though. I am planning on learning a bit about 1911 assembly and disassembly with this gun... although I am not a skilled gunsmith,,, I want to understand how to get it apart and back together. I won't be grinding or cutting anything... maybe just replacing mim or average quality parts.